Maria "Mary" Servaes-Beij (Dutch pronunciation: [maˈrijaː sɛrˌvaːzˈbɛi]; née Beij; 5 August 1919 – 23 October 1998), performing under the stage name Zangeres Zonder Naam (Dutch for 'Singer Without a Name', pronounced [ˈzɑŋərə(s) ˈsɔndər ˈnaːm]), was a Dutch levenslied singer.

[1][2] Servaes-Beij cared about the poor and disadvantaged, and often performed in prisons and hospitals.

She was regularly in direct contact with her public, and received many emotional letters.

[1] Zangeres Zonder Naam was one of the artists who performed at the Dutch Miami Nightmare concert (Amsterdam, 8 October 1977), organized against Anita Bryant and her anti-gay movement; Zangeres Zonder Naam performed her own song "Luister Anita" ("Anita, Listen to Me"), in which she compared Bryant with Hitler.

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